Kim Kardashian’s Custom Mermaid Cleavage Dress: A Bold Statement at London Fashion Week

At London Fashion Week on September 18, 2026, Kim Kardashian debuted a custom Mermaid Cleavage Dress by Ludovic de Saint Sernin—melding sheer fabrics, lace‑up corsetry, and fluid chiffon for a daring fashion moment.

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The Dress That Stopped the Show

On September 18, 2026, during London Fashion Week, Kim Kardashian unveiled a custom version of Ludovic de Saint Sernin’s Mermaid Cleavage Dress at the launch of her SKIMS international flagship on Regent Street. The gown featured the house’s signature plunge neckline, crafted in nude leather with eyelet detailing and lace‑up corsetry, paired with second‑skin stretch fabric and chiffon panels that fanned into a sweeping train . Designed “especially for Kim,” the gown’s body-hugging silhouette gave way to fluid chiffon at the hip, marrying structure with movement in a way that felt both sensual and modern . It perfectly aligned with Kardashian’s aesthetic—bold, body-conscious, and unapologetically glamorous.

A Visual Prelude to a Strategic Collaboration

This sartorial moment was more than a red‑carpet worthy look—it served as a visual prelude to the SKIMS × Ludovic de Saint Sernin capsule collection, set to launch October 1. Kardashian’s choice of designer was no accident: the custom gown subtly previewed the collaboration’s fusion of shapewear sensibility and de Saint Sernin’s boundary-pushing sexuality . By wearing the custom look at such a high-profile event, Kardashian effectively turned the dress into a branding tool, merging fashion spectacle with strategic marketing. The outfit became synonymous with the brand’s expansion ambitions in the UK and beyond.